Adjustable bearing.



L. S. GROOKSHANKS. ADJUSTABLE BEARING. APPLIGATION FILED M031, 1913.

Patented June 23, 1914.

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ADJUSTABLE EaI'Ne.

Saecisamn 0f ism." rat-at- 'I'at'ented June 23, 1914.

Application tiled December 3l, 1918. Serial No. 809g733.

lic it known ruit l. Linen-As S. Cnooitsii.\.\'its.a citizen of the United States; residing at Laredo. in the county of Grundy and Stute of lilissouri, have invented certain new and useful Improvements in Adjustable Bearings. of which the following is a specification. l

.\l v invention relates to improvements in adjustable journal boxes or bearings-` having automatic means to compensate for wear upon the 'engaging parts, and has piirticiilar reference to means of this character which are well adapted to be connected with or formed upon a pitiiian of an engine, of the reciprocatoiy type, either as or steam, for connecting the saine. witi the cranksliaft,wlii]e of. course not necessarily restricted to such use.

.\n im )oi-tant object of this invention is to provide means of the above mentioned character. wliieh are simple inconstruction, inexpensive to manufacture., convenient in use; reliable in operation, strong. and durable,

A further object of the invention is to provide means of the above mentioned character. which will automatically compensate for the wear upon thc engaging parts, in such a manner that a shaft or t e like embodied therein. will be held afvainst perceptible lateral or longitudinal` improper movement.

A further object of the invention is to provide means of the above mentioned character` formed in few and simple parts, which may be readily separated for the purpose of repair or cleaning and assembled in a like manner.

(')thcr objects and advantages of this invention will he apparent during the course of the following description.

ln the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same. Fi ure 1 is a side elevation of apparatus emiodying my invention, Fig. Q is a longitudinal sectional view through the same, Fig. il is a longitudinal sectional view taken on line of Fig. l. Fig. 4 is an edge view of the sinne, and. Fig. o is a similar view of the opposite edge.

1u the drawings, wherein for the purpose cf illustration, is shown a preferred embodiment of my invention, the numeral 10 designates a pitnlan, to which my improved bearing '1s preferably applied, while of course notl necessarily restricted to such use.

M v improved bearing comprises an inner member or head 1l. rigidly connected with the free end of the pitniaii 10 and preferably formed integral therewith. 'llie member 'or head-l1 is preferably arranged at substantially a right angle with relation to the pitman 10 and extends laterally in opposite directions beyond the same for a substantial distance. as shown. One end of the member or head l1 is provided with spaeedmpertured knuckles 12 for receiving an apei'turcd knuckle-13, formed upon'and preferably cast integral with one endl of an outer transverse meinbcuv or head 145 asshown, The knuckles 12'and 13 are pivotally'eonnected by means of a removable 'pin 15, as shown. The oppositely arranged members or heads 11 and 14 are provided with transverse recesses or pockets 16, which are curved in longitudinaland itransverse-` crosssection.- as best shown in Figs. 2

and 3. Fitting snugly and rotatably mounted within the vrecesses or pockets 16 is an enlarged ortion 17 of a wrist pin 18, such enlarge( portion being curved in longitudinal and transverse crosssection and tapering toward its opposite ends. The wrist pin 18 is rigidly connected with crank-portions 19 of a crank-shaft (not shown).

Rigidly connected with the outer end of the lower member or head 14 are spaced inwardly extending arms Q0, preferably formed integral therewith. These arms traverse the free end of the inner member or head 11 and extend inwardly beyond the saine, as shown. As more clearly shown in Fig. 4 the inwardly extending arms 20 are rovidcd upon their inner faces with enargements or projections 21, forming inclined shoulders 22, as shown.

The numeral 23 designates a compensating or adjusting wedge which is normally mounted upon the exterior surface of the member or head 11, operating below and in slidable engirilgement with the shoulders Q2, as shown. ie wedge 23 is automatically urged outwardly to throw the same into action, by a suitably stiff coil spring or springs 24, surrounding a transverse pin 2. carried by the free ends of the arms 20. The springs 24 have their outer ends or 1o heads 11 and 14 toward each other, such movement ofithe members llland- 14'compensating for the wear upon the -friction engaging part ofthe wrist pin-18 and members an v eads 11 and 14. With the pecu- 15 liar 'shapeand -construction of the enlarged portion 17 of the wrist pin 18 and the shape of the recess or pockets 16, the compensation of the wear upon said parts prevents both longitudinal and lateral im roper 2o movements of the same. When it is esired members or to remove the adjustable bearing from the wrist pin 18 or the wrist pin 18 from within it, the pin 15 is removed, and upon proper manipulation of the wedge 23, the

ieads 11 and 14 may be readily separated. These members or eads may Abe 'ust as readily assembled, as is obvious. .1 hile I have shown my adjustable bearng as preferably` used-in connection with a pitman and crank,.with' which'it is particularly well ada ted to coperate, yet it v is to be understo that the invention is in no sense lrestricted to this usc alone, as the same may he employed with some measure of success in connection with various other Aelements or combinations thereof.

Itis to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size and arrangement of parts ma be resorted to without departing from t e spirit of my invention or the scope of the suhjoined claim.

Having described my iuveutioml claim Au ad ustable bearing comprising eo-acting mem ers pivotally connected near corres ending ends, spaced arms connected with t ie opposite end of one member and traversinfr the corresponding opposite end of the other member and provided with inwardly extending shoulders, a wedge arranged between the spaced arms and slidably engaging the shoulders and last named member, a pin connecting the outer ends of the arms, and a spring mounted upon the pin and engaging the wedge.

In testimony whereof I afiix my signature in presence of two witnesses.

LEEMAN S. CROOKSHANKS.

Witnesses:

E. M. WILSON, G. M. FAaNswoa'rH.

Copies ol-thh patent may be obtained tor ave eentl non, by addressing the Gommtnioner of retenu, Washington, 0. 

